The combination of abundant low level moisture, an unstable air mass, and strong afternoon heating on Sunday July 10th - helped create scattered thunderstorms across the region.
A weak frontal zone over the central Sandhills Sunday afternoon, helped to initiate the first round of thunderstorms across McPherson County. These storms moved quickly eastward by late afternoon, as large hail and damaging winds resulted. Hail as large as tennis balls occurred west of Broken Bow. Another complex of severe thunderstorms moved north from Kansas, in association with a lifting warm frontal boundary. Damaging winds up to 70 MPH and hail as large as quarters, were reported with the second round of storms.
Below is an image of the preliminary local storm reports from the evening of July 10th, into the early morning hours of July 11th. Click the provided link below for a more detailed preliminary list of local storm reports.
Click here for more detailed reports
A brief radar animation from Sunday July 10th is provided below: